Gas-pressure regulator



Nov. 8, 1927.

C. V. EWAN GAs PRESSURE REGULATOR Filed June l, 1926' Inventor C'. V 27a/774 By @1/fl@ M Attorney Patented Nov. e, 1927.

Nmurenlsfra'rns@ PATENT critica.,

CHARLES v. Ewali, or LONG BEACH, cALIro/RNLAJ GAS-PRESSURE REGULATOR.

Application filed June 1,

This invention relates to pressure regulating devices and has for its primary object to provide a means'whereby fuel gas may be fed to an engine at uniform pressure re.- gardless of the. fluxation of the pressure Ifrom the main gas supply in order to perner at all times. Y

after more fully described, shown in theV accompanying drawing and claimed.

In the drawing wherein like reference characters indicate corresponding parts in both of the views:

AFigure 1 is a view partly in side elevation and partly in cross section of a gas regu'- lator constructed in accordance with the present invention, and

Figure 2 is a detail vertical section taken substantially at right angle with respectto Figure 1.

Now having particular reference to the drawing my novel gas pressure regulator constitutes the provision of a cylindrical tank 5 of any suitable capacity that is provided with a bottom plane wall 6 and a top inverted conical wall 7 the upper end of the tank being flanged as at 8 as is also the enlarged end of the conical wall 7 in order to permit .said wall to be secured on the tank as indicated by the reference character 9, and also to permit of the arrangement of a horizontal diaphragm 10 of circular shape between the tank and said wall, the perimeter thereof being disposed between the flanges and secured by said interconnected bolts, as more clearly disclosed in Figure 2.

The tank 5 is formed or provided at a suitable point with an inlet nipple 11 and a diametrically opposed point with an eX- haust nipple 12 there being arranged within the end of the nipple withinthe tank a horizontal pipe 13 to the inner end of which 1926. Serial No. 112,964.

is connected'a valve block 14that is formed at its upper end with a valve receiving chamber 15 in communication with thepipe 13 and from which depends a vertical. pas.- sage 16 that is incommunication with a transverse passage 17that opens Vat the op-v posite sides of the block as clearlydisclosed 1n Figure.v 1. The'lower end of the vertical passage is .tapered `for providing aA valve seat `18 for receiving the vupper pointed; end of a needle valve 19 mounted for sliding movement in a bore at the lower end' ofthe block for cutting. olf the passage of the. gas when said needle valve israised.v

Rigidly attached tothediaphragm 10 at the center thereof and depending therefrom is a valve control rod 201thatis yoked at its lower vend as at 21 for straddling the valve block to permit the free vertical movement of the same in opposite directions under the influence of said diaphragm. The legs of the yoke are interconnected by a cross bar 22 that is in turn vconnected to the needle valve 19 for controlling the opening and closing of the valve when said rod is actuated by reason of the diaphragm..

v Threaded within a vertical sleeve 23 arranged within the apex of the conical top wall 7 of the tank is a bolt 24 upon the lower end of which is mounted a shouldered nut 25 at its lower end with a drain port 28 that is normally closed by a plug or other vsuitable means, not shown.

In actual use, the nipple 11 of the tank has communication with a source of gas supply, while the nipple 12 is in communi-` cation kwith a gas engine and it will be' readily apparent that by so adjusting the spring pressure controlling bolt 24, gas vup to a certain pressure will be permitted to enter the tank 5. However, should the pres` sure ever increase over the predetermined vdegree the diaphragm 12 will be forced outwardly to overcome the tension of the spring A26 and consequently the needle valve 19 will move to closed position for preventing further inlet of the gas into the tank.

n As soon as thepressure drops, the needle valve will open and consequently again permit the gas to pass into the tank.

It will thus be seen that I have provided a highly novel, simple and eflicient form of gas regulator that is well adapted for all the purposes heretofore designated even though I have herein shown and described the invention as consisting ofpcertain detail structural elements, itis nevertheless to be under-` stood that minor changes may be made therein Without effecting the spirit and scope of the appended claim.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent is z- In a gas pressure regulator, a gas receiving tank provided with an inlet and an exhaust, a valve block, brackets for rigidly supporting said valve block within the central portion of the tank, said valve block being provided with a gas receiving cham ber, a pipe affording communication between the inlety and said chamber, said blockrbeing provided. with a transverse outlet which affordslcommunication with the interior of the tank, the block being furtherprovided with va vertical passage which affords communication between the gas receiving chamber and said outlet passage, a verticallyl slidable needle Valve, the upperrend thereofadapted to close the verticalpassage and cut off the'supply of gas from the chamberlto said outlet in the valve block, a. pressure actuated diaphragm mounted in the upperportion of the tank, a connection between the diaphragm and said needle valve, said connection comprising a rodv secured at its upperend to the diaphragm, a yoke formed on the lower end of the rod, the arms of said yoke being disposed on ther opposite sides of the valve block and extending below. the same, a cross bar interconnecting the legsv or' the yoke,l the lower endof the needle valve being secured to the intermediate portion of the cross bar, andadjustable tension means for regulating the actuation of the diaphragm under the pressure of the gas within the tank.

In testimony whereof I ax my signature.

CHARLES v. EWAN. y 

